Aluminum sleeve reducing device for smooth aluminum sleeve cable

Abstract

The invention relates to the technical field of cable production equipment, and discloses a smooth aluminum sleeve cable aluminum sleeve diameter reducing device which comprises an aluminum sleeve diameter reducing machine, four mutually symmetrical rolling wheels are distributed in the center of the aluminum sleeve diameter reducing machine in a cross mode, and a surface brushing mechanism is arranged on one side of a wire inlet of the aluminum sleeve diameter reducing machine; the noodle brushing mechanism comprises a first gear ring and a second gear ring which are parallel to each other. The smooth aluminum sleeve cable can sequentially penetrate through the first gear ring and the second gear ring which rotate in a staggered mode before entering the diameter reducing area of the aluminum sleeve diameter reducing machine, bristles in the first gear ring and the second gear ring slightly brush the outer surface of the smooth aluminum sleeve cable through staggered rotation of the first gear ring and the second gear ring, and the bristles can continuously scrape the surface of an aluminum sleeve; the cleaned aluminum sleeve can pass through the four rolling wheels more smoothly in the hole shrinkage process, friction and abrasion between the cleaned aluminum sleeve and the four rolling wheel parts are reduced, and therefore the service life of the four rolling wheels is prolonged.

Description

Technical Field

[0001] The invention relates to the field of cable production equipment, and more specifically, to a smooth aluminum sheath cable aluminum sheath diameter reducing device. Background Art

[0002] With the development of national economic energy construction, electricity demand is increasing, voltage transmission level is getting higher and higher, new cable structures are constantly emerging, smooth aluminum sheathed cable is one of them. During processing, the smooth aluminum sheathed cable needs to be covered with an aluminum sheath on the outside of the cable core. The aluminum sheath needs to fit tightly. The aluminum sheath with interference fit is not easy to plug in, and it is also easy to cause damage to the cable core. Therefore, the aluminum sheath usually adopts a gap fit. After being covered on the outside of the cable core, the aluminum sheath is reduced in diameter through a reducing device to achieve a close fit between the aluminum sheath and the cable core.

[0003] In the cable aluminum sheath reducing machine, the aluminum sheath cable passes through the through holes on the base and the mounting table, and then is rolled by the rolling wheel assembly to compress the aluminum sheath to the required outer diameter. The design and layout of the rolling wheel assembly can ensure that the aluminum sheath is subjected to uniform rolling force at multiple angles, thereby achieving comprehensive and effective reduction.

[0004] However, when the aluminum sheathed cable passes through the rolling wheel group, if there are impurities on the outer surface of the cable, the presence of impurities may affect the reduction effect and the overall quality of the cable. The operator is unable to quickly discover and deal with the impurities on the surface of the aluminum sheath, increasing friction and wear with equipment components. For this reason, we propose a smooth aluminum sheathed cable aluminum sheath reduction device. Summary of the invention

[0005] The present invention provides a smooth aluminum sheath cable aluminum sheath shrinking device, which solves the technical problems in the related art that there are impurities on the outer surface of the cable, the presence of the impurities may affect the shrinking effect and the overall quality of the cable, and the operator is unable to quickly discover and deal with the impurities on the surface of the aluminum sheath, thereby increasing friction and wear with equipment components.

[0006] The present invention provides a smooth aluminum sheath cable aluminum sheath reduction device, comprising: an aluminum sheath reduction machine, wherein four rolling wheels are cross-distributed and symmetrical to each other at the center of the aluminum sheath reduction machine, and a brushing mechanism is arranged on one side of a wire inlet of the aluminum sheath reduction machine to remove foreign matter from the outer surface of the cable aluminum sheath entering the wire inlet of the aluminum sheath reduction machine;

[0007] The brushing mechanism comprises two parallel gear rings, one and two, and the inner walls of the gear rings are both provided with brush bristles.

[0008] A plurality of marking mechanisms are arranged between gear ring one and gear ring two, and the marking mechanisms include a toothed disc meshing with gear ring one and gear ring two, a middle column is arranged inside the toothed disc, and a rotating bead is arranged at one end of the middle column close to the cable aluminum sleeve for rotating to detect the smoothness of the surface of the cable aluminum sleeve, and a plurality of spray heads are arranged on the end face of the middle column for spraying marks on the surface of the aluminum sleeve at the fluctuation of the rotating bead.

[0009] Furthermore, the brushing mechanism also includes an auxiliary frame fixedly connected to the aluminum sleeve reducing machine, and a wire passing drum is fixedly arranged at the center position of the auxiliary frame. The center of the wire passing drum and the center of the aluminum sleeve reducing machine are located in the same straight line, and the cable aluminum sleeve passes through the wire passing drum and the center position of the four rolling wheels in sequence.

[0010] Furthermore, an extension arm is fixedly provided on the side of gear ring 1 away from gear ring 2, and elastic bands and pull wires are respectively fixedly provided on both sides of the extension arm. One end of the elastic band away from the extension arm is fixedly connected to the wire passing barrel, and both gear ring 1 and gear ring 2 are rotatably connected to the inner wall of the wire passing barrel.

[0011] Furthermore, an air box is fixedly provided on one side of the extension arm close to the pull wire, an output end of the air box is fixedly connected to an air supply pipe 1, a plurality of jet holes are opened on one side of the gear ring 1 close to the gear ring 2, and the plurality of jet holes are interconnected with the air supply pipe 1.

[0012] Furthermore, a limiting groove is provided inside the aluminum sleeve reducing machine located on one side of the upper rolling wheel among the four rolling wheels, a turntable is rotatably arranged inside the limiting groove, a torsion spring is arranged at the center position of the turntable, the turntable forms a rotating structure with the aluminum sleeve reducing machine through the torsion spring, and the turntable is fixedly connected to the pull wire.

[0013] Furthermore, an L-shaped swing arm is fixedly provided on one side of the turntable, a magnetic sheet is fixedly provided on the end of the swing arm away from the turntable, and a strong magnetic block is fixedly provided on the side of the rolling wheel close to the limiting groove, and the strong magnetic block and the magnetic sheet attract each other.

[0014] Furthermore, a liquid storage ring is fixedly provided on the wire drum, an elastic liquid injection rubber head is fixedly provided at the input end of the liquid storage ring, and a plurality of expansion rubber sheets are fixedly provided on the outer wall of the liquid storage ring for applying pressure to the inside of the liquid storage ring.

[0015] Furthermore, a blocking ball is movably arranged inside the liquid spray head, a control wire is fixedly arranged on the blocking ball, and liquid inlet ends of the plurality of liquid spray heads are fixedly connected with liquid flow pipes.

[0016] Furthermore, a liquid storage chamber opened in the middle column is arranged at one end of the liquid flow tube away from the liquid spray head, and the liquid inlet end of the liquid storage chamber is connected to the liquid inlet pipe, and the liquid spray head, the liquid flow tube, the liquid storage chamber and the liquid storage ring are interconnected.

[0017] Furthermore, a lower pressure plate is arranged above the rotating ball, and the arc angle of the lower pressure plate is the same as the arc angle of the rotating ball. A lifting column slidably connected to the middle column is fixedly arranged above the lower pressure plate. The top plate of the lifting column is fixedly connected to one end of several control wires away from the blocking ball, and the outer sleeve of the lifting column is provided with a spring.

[0018] The beneficial effects of the present invention are:

[0019] The smooth aluminum sheath cable of the present invention will sequentially pass through the gear ring 1 and the gear ring 2 which rotate alternately with each other before entering the diameter reduction area of ​​the aluminum sheath diameter reduction machine. Through the alternate rotation of the gear ring 1 and the gear ring 2, the bristles in the two gear rings lightly brush the outer surface of the smooth aluminum sheath cable. The bristles can continuously scrape the surface of the aluminum sheath. The cleaned aluminum sheath can pass through the four rolling wheels more smoothly during the diameter reduction process, reducing the friction and wear with the four rolling wheel components, thereby extending the service life of the four rolling wheels.

[0020] By rolling the rotating bead on the surface of the aluminum sleeve, impurities on the surface of the aluminum sleeve can be detected instantly. Once there are impurities on the surface of the aluminum sleeve, the fluctuation of the rotating bead will immediately trigger the marking mechanism, and automatically spray a striking color at the fluctuation point for marking, which is convenient for subsequent manual processing or automatic removal. This design helps to timely detect and mark impurities on the surface of the aluminum sleeve before the shrinking process, thereby avoiding the influence of impurities on the shrinking effect and the overall quality of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 The present invention Figure 1 The enlarged schematic diagram at A in the middle;

[0023] Figure 3 It is a schematic diagram of the structure of the turntable of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the liquid storage ring of the present invention;

[0025] Figure 5 The present invention Figure 4 The enlarged schematic diagram of point B in the middle;

[0026] Figure 6 is a schematic diagram of the gear ring structure of the present invention;

[0027] Figure 7 It is a schematic diagram of the toothed disc structure of the present invention;

[0028] Figure 8 It is a schematic diagram of the internal structure of the center column of the present invention;

[0029] Fig. 9 The present invention Figure 8 Enlarged schematic diagram at point C in the middle.

[0030] In the figure: 11, aluminum sleeve reducing machine; 12, rolling wheel; 13, strong magnetic block; 14, limit groove; 2, brushing mechanism; 21, auxiliary frame; 22, wire drum; 23, liquid storage ring; 24, expansion film; 25, gear ring one; 26, gear ring two; 27, extension arm; 28, elastic band; 29, liquid injection rubber head; 201, air box; 202, air supply pipe one; 204, air jet hole; 205, brush; 31, swing arm; 32, magnetic sheet; 33, turntable; 34, torsion spring; 35, pull wire; 4, marking mechanism; 41, toothed disc; 42, middle column; 43, liquid inlet pipe; 44, rotating bead; 45, lower pressure plate; 46, lifting column; 47, spring; 48, liquid spray head; 49, blocking ball; 401, control wire; 402, liquid flow pipe; 403, liquid storage chamber. DETAILED DESCRIPTION

[0031] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0032] like Figure 1 - Fig. 9 As shown, a smooth aluminum sheath cable aluminum sheath reduction device comprises: an aluminum sheath reduction machine 11, four mutually symmetrical rolling wheels 12 are cross-distributed at the center of the aluminum sheath reduction machine 11, and a brushing mechanism 2 is arranged on one side of the wire inlet of the aluminum sheath reduction machine 11 to remove foreign matter from the outer surface of the cable aluminum sheath entering the wire inlet of the aluminum sheath reduction machine 11;

[0033] First, place the smooth aluminum sheath cable at the designated position of the aluminum sheath reducing machine 11. This position is usually carefully designed to ensure that the cable can stably and accurately enter the center of the four rolling wheels 12 of the aluminum sheath reducing machine 11. The cable is smoothly introduced into the aluminum sheath reducing machine 11 through the brushing mechanism 2 on one side of the aluminum sheath reducing machine 11. After the cable enters the reducing area, the four rolling wheels 12 start to work. The four rolling wheels 12 rotate under the drive of the driving motor to reduce the diameter of the smooth aluminum sheath cable.

[0034] The brushing mechanism 2 includes two parallel gear rings 1 25 and 26, and the inner walls of the gear rings 1 25 and 26 are both provided with brush bristles 205;

[0035] Before the smooth aluminum sleeve cable enters the shrinking area of ​​the aluminum sleeve shrinking machine 11, it will pass through the gear ring 1 25 and the gear ring 2 26 that rotate alternately with each other in sequence. Through the alternate rotation of the gear ring 1 25 and the gear ring 2 26, the bristles 205 in the two lightly brush the outer surface of the smooth aluminum sleeve cable. The bristles 205 can continuously scrape the surface of the aluminum sleeve, thereby efficiently removing impurities on the aluminum sleeve. The two gear rings 1 25 and the gear ring 2 26 rotate in opposite directions, which can achieve all-round cleaning of the aluminum sleeve entering the aluminum sleeve shrinking machine 11. The cleaned aluminum sleeve can pass through the four rolling wheels 12 more smoothly during the shrinking process, reducing friction and wear with the components of the four rolling wheels 12, thereby extending the service life of the four rolling wheels 12;

[0036] This design realizes automatic cleaning of the aluminum sleeve without manual intervention, which improves work efficiency. The cleaning process is closely linked to the shrinking process, which reduces downtime caused by cleaning and improves the overall efficiency of the production line.

[0037] A plurality of marking mechanisms 4 are arranged between the gear ring 1 25 and the gear ring 2 26. The marking mechanism 4 comprises a toothed disc 41 meshing with the gear ring 1 25 and the gear ring 2 26. A middle column 42 is arranged inside the toothed disc 41. A rotating bead 44 is arranged at one end of the middle column 42 close to the cable aluminum sleeve for rotating. For the smoothness detection of the surface of the cable aluminum sleeve, a plurality of spray heads 48 are arranged on the end surface of the middle column 42 for spraying marks on the surface of the aluminum sleeve at the fluctuation of the rotating bead 44.

[0038] By rolling the rotating bead 44 on the surface of the aluminum sleeve, impurities on the surface of the aluminum sleeve can be detected instantly. Once there are impurities on the surface of the aluminum sleeve, the fluctuation of the rotating bead 44 will immediately trigger the detection mechanism of the marking mechanism 4, and automatically spray a striking color at the fluctuation point for marking, which is convenient for subsequent manual processing or automatic removal. This design helps to timely detect and mark impurities on the surface of the aluminum sleeve before the shrinking process, thereby avoiding the influence of impurities on the shrinking effect and the overall quality of the cable.

[0039] Through the two gear rings 1 25 and 26 rotating in opposite directions and the toothed disc 41 therebetween, a zigzag path on the surface of the aluminum sleeve is achieved through the rotation and movement of the toothed disc 41 on the gear rings 1 25 and 26, which has the effect of crushing and driving the aluminum sleeve. This two-way meshing design ensures that the aluminum sleeve is evenly stressed during the shrinking process, avoiding local stress concentration and irregular deformation that may be caused by rotation in a single direction. The reciprocating rolling of the rotating ball 44 on the surface of the aluminum sleeve not only promotes the smooth movement of the aluminum sleeve, but more importantly, it effectively disperses and reduces the torsional stress generated by the aluminum sleeve during the shrinking process. This reciprocating pushing mechanism helps the aluminum sleeve to maintain a taut state, prevents the occurrence of torsion, and improves the straightness and quality of the product.

[0040] The brushing mechanism 2 also includes an auxiliary frame 21 fixedly connected to the aluminum sleeve reducing machine 11. A wire drum 22 is fixedly arranged at the center position of the auxiliary frame 21. The center of the wire drum 22 is located in the same straight line as the center of the aluminum sleeve reducing machine 11, and the cable aluminum sleeve passes through the center positions of the wire drum 22 and the four rolling wheels 12 in sequence.

[0041] An extension arm 27 is fixedly provided on one side of the gear ring 1 25 away from the gear ring 2 26, and an elastic band 28 and a pull wire 35 are fixedly provided on both sides of the extension arm 27. One end of the elastic band 28 away from the extension arm 27 is fixedly connected to the wire passing drum 22, and both the gear ring 1 25 and the gear ring 2 26 are rotatably connected to the inner wall of the wire passing drum 22.

[0042] An air box 201 is fixedly provided on one side of the extension arm 27 close to the pull wire 35, and an output end of the air box 201 is fixedly connected to an air supply pipe 1 202. A plurality of air injection holes 204 are opened on one side of the gear ring 1 25 close to the gear ring 2 26, and the plurality of air injection holes 204 are interconnected with the air supply pipe 1 202.

[0043] A limiting groove 14 is provided inside the aluminum sleeve reducing machine 11 located on one side of the upper rolling wheel 12 among the four rolling wheels 12. A turntable 33 is rotatably arranged inside the limiting groove 14. A torsion spring 34 is arranged at the center position of the turntable 33. The turntable 33 forms a rotating structure with the aluminum sleeve reducing machine 11 through the torsion spring 34, and the turntable 33 is fixedly connected to the pull wire 35.

[0044] An L-shaped swing arm 31 is fixedly provided on one side of the turntable 33, a magnetic sheet 32 ​​is fixedly provided on the end of the swing arm 31 away from the turntable 33, and a strong magnetic block 13 is fixedly provided on the side of the rolling wheel 12 close to the limiting groove 14, and the strong magnetic block 13 and the magnetic sheet 32 ​​attract each other.

[0045] After the smooth aluminum sleeve cable passes through the four rolling wheels 12, the rotation of the four rolling wheels 12 causes the strong magnetic block 13 to make a circular motion with the rolling wheels 12. When the strong magnetic block 13 passes through the magnetic sheet 32, the strong magnetic block 13 drives the magnetic sheet 32 ​​to rotate with it, and the magnetic sheet 32 ​​drives the swing arm 31 and the turntable 33 to rotate with the torsion spring 34 as the center of the circle, and the rotation of the turntable 33 tightens the pull wire 35. After that, when the strong magnetic block 13 rotates to the inside of the aluminum sleeve shrinking machine 11, the swing arm 31 is blocked and loses its adsorption force. At this time, the turntable 33 is driven to reverse and reset by the resilience of the torsion spring 34, thereby pulling the pull wire 35 back and forth;

[0046] Each time the pull wire 35 is pulled, the extension arm 27 is pulled once. When the pull wire 35 is relaxed by the turntable 33, the extension arm 27 is pulled back to its original position by the resilience of the elastic band 28. When the pull wire 35 pulls the extension arm 27, the gear ring 1 25 is driven to rotate clockwise, and the gear ring 1 25 drives the plurality of toothed discs 41 to rotate, and the plurality of toothed discs 41 drives the gear ring 2 26 to rotate counterclockwise. The bristles 205 in the gear ring 26 clean the surface of the smooth aluminum sheath cable for the first time, and the bristles 205 in the gear ring 1 25 clean the surface of the smooth aluminum sheath cable for the second time.

[0047] When the gear ring 1 25 rotates clockwise, the air box 201 is squeezed by the extension arm 27, so that the air in the air box 201 flows into the plurality of air jet holes 204 through the air supply pipe 1 202 and is ejected, thereby blowing air from the gear ring 1 25 to the gear ring 2 26 to blow out the impurities cleaned by the gear ring 2 26.

[0048] A liquid storage ring 23 is fixedly provided on the wire barrel 22 , an elastic liquid injection rubber head 29 is fixedly provided at the input end of the liquid storage ring 23 , and a plurality of expansion rubber sheets 24 are fixedly provided on the outer wall of the liquid storage ring 23 for applying pressure to the inside of the liquid storage ring 23 .

[0049] A blocking ball 49 is movably disposed inside the liquid spray head 48 , and a control wire 401 is fixedly disposed on the blocking ball 49 . Liquid inlet ends of the plurality of liquid spray heads 48 are fixedly connected to a liquid flow pipe 402 .

[0050] A liquid storage chamber 403 opened inside the middle column 42 is provided at one end of the liquid flow tube 402 away from the liquid spray head 48, and the liquid inlet end of the liquid storage chamber 403 is connected to the liquid inlet tube 43. The liquid spray head 48, the liquid flow tube 402, the liquid storage chamber 403 and the liquid storage ring 23 are interconnected.

[0051] A lower pressure plate 45 is arranged above the rotating bead 44, and the arc angle of the lower pressure plate 45 is the same as that of the rotating bead 44. A lifting column 46 slidably connected to the middle column 42 is fixedly arranged above the lower pressure plate 45. The top plate of the lifting column 46 is fixedly connected to the ends of the plurality of control wires 401 away from the blocking ball 49, and a spring 47 is sleeved on the outside of the lifting column 46.

[0052] Use a syringe to penetrate the injection rubber head 29 and inject colored liquid into the liquid storage ring 23. As the amount of liquid injected increases, the multiple expansion rubber sheets 24 gradually expand and exert pressure on the liquid. The liquid flows along the liquid inlet pipe 43 to the multiple liquid storage chambers 403, and then flows along the liquid flow pipe 402 to the multiple liquid spray heads 48.

[0053] The rotation of the toothed disc 41 drives the rotating bead 44 to rotate, and the rotating bead 44 just contacts the surface of the smooth aluminum sheath cable. Once there are impurities on the surface of the aluminum sheath, the rotating bead 44 fluctuates, and the lower pressure plate 45 is squeezed by the rotating bead 44. The lower pressure plate 45 is pulled, which immediately triggers the detection mechanism of the marking mechanism 4, and automatically sprays a striking color at the fluctuation point to mark the control wire 401. The blocking ball 49 is pulled by the control wire 401, so that the colored liquid is sprayed around the impurities on the surface of the smooth aluminum sheath cable.

[0054] The above describes an embodiment of the present embodiment, but the present embodiment is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present embodiment, ordinary technicians in this field can also make many forms, all of which are within the protection of the present embodiment.

Claims

1. A smooth aluminum sheath cable aluminum sheath diameter reducing device, comprising: An aluminum sheath reducing machine (11), wherein four rolling wheels (12) are cross-distributed and symmetrical to each other at the center position of the aluminum sheath reducing machine (11), and characterized in that a brushing mechanism (2) is provided on one side of the wire inlet of the aluminum sheath reducing machine (11) to remove foreign matter from the outer surface of the aluminum sheath of the cable entering the wire inlet of the aluminum sheath reducing machine (11); The brushing mechanism (2) comprises two mutually parallel gear rings, namely, a first gear ring (25) and a second gear ring (26), wherein the inner walls of the first gear ring (25) and the second gear ring (26) are both provided with brush bristles (205); A plurality of marking mechanisms (4) are arranged between the gear ring 1 (25) and the gear ring 2 (26), and the marking mechanism (4) comprises a toothed disc (41) meshing with the gear ring 1 (25) and the gear ring 2 (26). A central column (42) is arranged inside the toothed disc (41), and a rotating bead (44) is arranged at one end of the central column (42) close to the cable aluminum sleeve for detecting the smoothness of the surface of the cable aluminum sleeve. The end surface of the central column (42) is provided with a plurality of spray heads (48) for spraying marks on the surface of the aluminum sleeve at the undulation of the rotating bead (44).

2. A smooth aluminum sheath cable aluminum sheath diameter reducing device according to claim 1, characterized in that: The brushing mechanism (2) further comprises an auxiliary frame (21) fixedly connected to the aluminum sleeve reducing machine (11), a wire passing drum (22) being fixedly arranged at the center of the auxiliary frame (21), the center of the wire passing drum (22) and the center of the aluminum sleeve reducing machine (11) being located in the same straight line, and the cable aluminum sleeve passes through the center of the wire passing drum (22) and the four rolling wheels (12) in sequence.

3. A smooth aluminum sheath cable aluminum sheath diameter reducing device according to claim 2, characterized in that: An extension arm (27) is fixedly arranged on one side of the gear ring 1 (25) away from the gear ring 2 (26); elastic bands (28) and pull lines (35) are fixedly arranged on both sides of the extension arm (27); one end of the elastic band (28) away from the extension arm (27) is fixedly connected to a wire barrel (22); and both the gear ring 1 (25) and the gear ring 2 (26) are rotatably connected to the inner wall of the wire barrel (22).

4. A smooth aluminum sheath cable aluminum sheath diameter reducing device according to claim 3, characterized in that: An air box (201) is fixedly arranged on one side of the extension arm (27) close to the pull wire (35), and an output end of the air box (201) is fixedly connected to an air supply pipe 1 (202). A plurality of air injection holes (204) are opened on one side of the gear ring 1 (25) close to the gear ring 2 (26), and the plurality of air injection holes (204) are interconnected with the air supply pipe 1 (202).

5. The device for reducing the diameter of an aluminum sheath of a smooth aluminum sheath cable according to claim 3, characterized in that: A limiting groove (14) is provided inside the aluminum sleeve reducing machine (11) located on one side of an upper rolling wheel (12) among the four rolling wheels (12), a rotating disk (33) is rotatably arranged inside the limiting groove (14), a torsion spring (34) is arranged at the center of the rotating disk (33), the rotating disk (33) and the aluminum sleeve reducing machine (11) form a rotating structure through the torsion spring (34), and the rotating disk (33) is fixedly connected to a pulling wire (35).

6. A smooth aluminum sheath cable aluminum sheath diameter reducing device according to claim 5, characterized in that: An L-shaped swing arm (31) is fixedly provided on one side of the turntable (33), a magnetic sheet (32) is fixedly provided on one end of the swing arm (31) away from the turntable (33), and a strong magnetic block (13) is fixedly provided on the side of the rolling wheel (12) close to the limiting groove (14), and the strong magnetic block (13) and the magnetic sheet (32) attract each other magnetically.

7. The device for reducing the diameter of an aluminum sheath of a smooth aluminum sheath cable according to claim 1, characterized in that: A liquid storage ring (23) is fixedly arranged on the wire passing cylinder (22), an elastic liquid injection rubber head (29) is fixedly arranged at the input end of the liquid storage ring (23), and a plurality of expansion rubber sheets (24) are fixedly arranged on the outer wall of the liquid storage ring (23) for applying pressure to the inside of the liquid storage ring (23).

8. The device for reducing the diameter of an aluminum sheath of a smooth aluminum sheath cable according to claim 7, characterized in that: A blocking ball (49) is movably arranged inside the liquid spray head (48), and a control wire (401) is fixedly arranged on the blocking ball (49). Liquid inlet ends of a plurality of the liquid spray heads (48) are fixedly connected to liquid flow pipes (402).

9. A smooth aluminum sheath cable aluminum sheath diameter reducing device according to claim 8, characterized in that: A liquid storage chamber (403) opened inside the middle column (42) is provided at one end of the liquid flow tube (402) away from the liquid spray head (48); the liquid inlet end of the liquid storage chamber (403) is connected to the liquid inlet tube (43); the liquid spray head (48), the liquid flow tube (402), the liquid storage chamber (403) and the liquid storage ring (23) are interconnected.

10. A smooth aluminum sheath cable aluminum sheath diameter reducing device according to claim 9, characterized in that: A lower pressure plate (45) is arranged above the rotating bead (44), and the arc angle of the lower pressure plate (45) is the same as the arc angle of the rotating bead (44). A lifting column (46) slidably connected to the middle column (42) is fixedly arranged above the lower pressure plate (45). The top plate of the lifting column (46) is fixedly connected to one end of a plurality of control wires (401) away from the blocking ball (49), and a spring (47) is sleeved on the outside of the lifting column (46).

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